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Spring Kickstart Kit

$64.80 $72

(2) 42.3 oz liquid lawn fertilizers, (1) 5 oz weed control concentrate

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Spring Kickstart Kit includes Iron Boost and Grass Machine fertilizers and Dandelion Doom weed killerIron Boost liquid fertilizerGrass Machine liquid fertilizerDandelion Doom ConcentrateHerbicide concentrate pouch + wand sprayerLiquid Pouch Sprayer

Your lawn's annual whole spring game plan, in one box.

Fertilizer for growth and deep green, weed control that works fast, and the tools to make it easy. Everything your lawn needs annually to bounce back from winter.

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$64.80$72

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    Spring Kickstart Kit includes Iron Boost and Grass Machine fertilizers and Dandelion Doom weed killerIron Boost liquid fertilizerGrass Machine liquid fertilizerDandelion Doom ConcentrateHerbicide concentrate pouch + wand sprayerLiquid Pouch Sprayer

    The post-winter comeback your lawn needs

    Grass Machine delivers nitrogen, iron, and seaweed to get things growing again. Iron Boost brings our highest iron concentration for color so deep your neighbors will notice (and pretend not to). Dandelion Doom handles broadleaf weeds without bothering a single blade of grass.

    One box. One season. Your lawn handled.

    The good stuff inside

    • Growth + resilience Grass Machine (15-0-3) fuels thick, healthy turf
    • Deep greening Iron Boost (20-0-1) for lawns that need extra color
    • Lawn-safe weed control
    • Precision tools Wand sprayer and pouch for easy, targeted spot treatment
    • Easy application Attach, spray and you’re done

    How to use

    Apply early morning or evening, between 50–85°F, to a hydrated lawn.

    1. Mix Dandelion Doom in the herbicide pouch, fill to the 1-gallon line, shake gently.
    2. Attach wand sprayer, target weeds directly. Let dry. Repeat in 3–4 weeks if needed.
    3. Attach hose-end sprayer to Iron Boost fertilizer pouch, spray your lawn evenly.
    4. Reapply fertilizer every 4–6 weeks, alternating Grass Machine and Iron Boost.

    Automatically renewals annually.

    Want to test your soil? Sign up for a Custom Lawn Plan instead.

    What's the best lawn fertilizer for spring?

    Liquid fertilizer with nitrogen and iron absorbs fast and gets grass growing after winter. Grass Machine (15-0-3) combines nitrogen, iron, and seaweed for growth and resilience. For deeper greening, alternate with Iron Boost (20-0-1) every 4–6 weeks.

    How do I get rid of dandelions without killing my grass?

    Use an iron-based herbicide like Dandelion Doom or Weed & Green. The iron (FeHEDTA) in both formulas targets broadleaf weeds while leaving grass alone. Spray directly on leaves until covered and repeat in 3–4 weeks.

    Is this safe for pets and kids?

    Yep. Once everything's dry (usually a few hours) you're good to go. No synthetic herbicides, no waiting days to use your yard.

    Can I apply weed killer and fertilizer the same day?

    You can. Weed killer first, let it dry (2–3 hours), then fertilize. Each product needs time to absorb and dry before the next goes down.

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    A woman sprays Sunday Lawn Kickstart

    Spring Kickstart Kit Instructions

    This kit provides iron-powered weed control alongside nitrogen- and seaweed-boosted fertilizer for lawns up to 5,000 sq. ft. Learn how to apply your kit in the correct order to get a greener lawn this spring.

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    Customer reviews

    Based on 12 reviews!
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    Kelly H.
    Verified Reviewer
    LocationOrmond Beach, FL
    Dandelion Doom didnt work for me

    I purchased the Spring Starter kit, which included Dandelion Doom. I used it as my first product (and only at this point) and followed directions to a t. It literally did absolutely nothing to my lawn weeds. I also sprayed it along my fence line and those weeds are still happy as can be, too. I don’...

    Comments by Store Owner on Review by Sunday on Fri Feb 28 2025
    Sunday
    Thanks for sharing your feedback regarding Dandelion Doom! This is a selective herbicide, which means that it is designed to target broadleaf weeds like dandelions, and not certain other weeds. We encourage you to reach our to our expert Yard Advisor team to get more information on the weeds that Dandelion Doom is effective on. You can reach them at [email protected].
    Published date
    02/28/25
    Was this review helpful?
    2
    0
    Penny
    Verified Reviewer
    LocationOklahoma City OK
    Kick start definitely kick started our lawn

    Our back yard was pretty much bare and muddy with dormant Bermuda grass. With 2 large active dogs overseeing was out of the question. In desperation I applied Kick Start and within a week the Bermuda grass is coming back. I see new grass coming up all over. Very happy home owner here...

    Published date
    05/15/24
    Was this review helpful?
    1
    0
    PennyG
    Verified Reviewer
    LocationOklahoma City, OK
    I just love Mosquito Deleto

    Easy to apply and it smells pleasant. I had used several other natural products before but the smell was pretty much unbearable, plus the sprayers usually drenched me. Mosquito Deleto is easy to apply without any back spray and it smells nice. Like it so much I just ordered 2 more bottles.

    Published date
    05/15/24
    Was this review helpful?
    0
    1
    Meg
    LocationOklahoma
    Awful

    Review by Anonymous User This whole thing is a scam. We have more weeds than we have ever had in our yard. We have way more success using what our local hardware store has

    Comments by Store Owner on Review by Sunday on Tue Apr 30 2024
    Sunday
    Sunday nutrients will improve soil health, encouraging thicker and fuller grass growth. However, our fertilizer pouches/bags do not contain any herbicides, so they alone will not directly treat existing patches of weeds.​​​​​​ For assistance with our weed control products and to make the most of your Custom Lawn Plan, you can always reach out to your Yard Advisor! You can reach them at [email protected] or by calling 415-903-6932.
    Published date
    04/30/24
    Was this review helpful?
    0
    1
    David
    Verified Buyer
    LocationCorning, NY
    Just right for me.

    This kit is easy to use and comes with everything you need to get started. The results are good but not dramatic. It’s not advertised as a dramatic improvement, but rather a process that depends on the time and resources you dedicate to it. i live in a neighborhood in the north, and the house is on ...

    Published date
    02/06/24
    Was this review helpful?
    2
    0
    Stephen
    Verified Buyer
    LocationVirginia
    Great start to the growing season

    The spring starter kit worked great. My lawn came in vibrant and healthy to start the year. The kit was delivered quickly.

    Published date
    10/17/23
    Was this review helpful?
    1
    0
    Lynette
    Verified Buyer
    LocationSagle Idaho
    Easy

    Love this spring kickstart package. Everything I needed without having to go to the store and find all the right products. My lawn looked great this year.Thanks Sunday Team

    Published date
    10/15/23
    Was this review helpful?
    2
    0
    ROBIN
    Verified Buyer
    LocationGaylord, MI
    Just ok.

    First time using Sunday. Anticipated a thicker green yard. The weed control was not affective against clover in the grass. I did not see the results I expected. This may not be related, but I have had extensive mole damage this year for the first time. I did like the Nix Ticks product and Deleto Mos...

    Published date
    10/13/23
    Was this review helpful?
    3
    0
    Ashley
    Verified Buyer
    LocationNewnan, Georgia
    Got things going!

    We felt safe using these products around our kids and dogs. It really greened up the grass but the weed killer probably needs a few coats to really make it count. So far we will be buying again!

    Published date
    10/12/23
    Was this review helpful?
    2
    0
    JAMIE
    Verified Buyer
    LocationUtah
    Great product with great results

    We have 4 Basset Hounds, so we wanted something pet friendly. The kickstarter kit worked great and really brought our lawn back to being green and full. We had weeds and dead patches in our lawn before using the kickstart kit and it really got it going in the right direction. Our lawn is thick and g...

    Published date
    10/12/23
    Was this review helpful?
    0
    1

    $64.80$72